18KPR MSYSTEM | Alldatasheet

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MODEL: 18KPR 18KPR SPECIFICATIONS ES-0460 Rev.1 Page 1/4 http://www.m-system.co.jp/ Rack-mounted DCS Signal Conditioners 18K-RACK PULSE SCALER Functions & Features

  • Takes pulse measurements from turbine meters or volumetric flowmeters and outputs in convenient engineering unit
  • Module can be retracted without removing wiring for an insulation test
  • Optional power switch MODEL: 18KPR–[1][2]–R[3]

ORDERING INFORMATION

  • Code number: 18KPR-[1][2]-R[3] Specify a code from below for each [1] through [3]. (e.g. 18KPR-11-R/S)
  • Input Range (e.g. 0 - 356.7 Hz)
  • Output Range (e.g. 0 - 1.00 Hz) [1] INPUT 1: Dry contact (max. 100 kHz) 2: Voltage pulse (max. 100 kHz) [2] OUTPUT 1: Open collector (max. frequency 20 kHz) 2: 5 V pulse (max. frequency 20 kHz) 3: Relay contact (max. frequency 2 Hz) 4: 24 V pulse (max. frequency 20 Hz) POWER INPUT DC Power R: 24 V DC (Operational voltage range 24 V ±10 %, ripple 10 %p-p max.) [3] OPTIONS Power Switch blank: None /S: With power switch CAUTION 1) This unit's output waveform is not uniform due to its scaling method. 2) Use input relays which do not cause chattering (e.g. mercury relays). Other relays could be used only with a CR filter, for 10 Hz at maximum. 3) Use M-System’s Model M2PRU instead of this unit in conjunction with the pulse output from M-System’s power transducers. Relay R C PULSE SCALER C = 1 µF R = 10kΩ GENERAL SPECIFICATIONS Construction: Rack-mounted; terminal access via screw terminals on the front and connector on the rear; terminal cover provided Connection Input: M3.5 screw terminals (torque 0.8 N·m) and connector Output: M3.5 screw terminals (torque 0.8 N·m) and connector Power: Supplied from connector Screw terminal: Nickel-plated steel Isolation: Input to output to power Input pulse sensing: Capacitor coupled; detecting pulse rise Sensitivity adjustment: Single-turn screwdriver adjustment (front); 25 mVp-p – 5 Vp-p Scaling factor adjustment: 10-position rotary switch; 0.9999 × 100 – 0.0001 × 10–6

MODEL: 18KPR 18KPR SPECIFICATIONS ES-0460 Rev.1 Page 2/4 http://www.m-system.co.jp/ INPUT SPECIFICATIONS ■ Dry Contact: Mechanical contact or open collector Max. frequency: 100 kHz Pulse width time requirement: 5 μsec. min. (20 msec. min. for frequencies ≤ 10 Hz) Sensing: Approx. 7.5 V DC @ 1 mA ON/OFF level: ≤ 20 kΩ for ON, ≥ 100 kΩ for OFF ■ Voltage Pulse: Square or sine waveforms* Max. frequency: 100 kHz Pulse width time requirement: 5 μsec. min. (20 msec. min. for frequencies ≤ 10 Hz) Input amplitude: 25 mVp-p – 50 Vp-p Minimum amplitude requirement

  • With duty ratio 50 ±10 % (frequency: amplitude) 0 – 2 kHz: 25 mVp-p 0 – 20 kHz: 50 mVp-p 0 – 40 kHz: 1 Vp-p 0 – 100 kHz: 5 Vp-p
  • With duty ratio other than 50 ±10 % (pulse width: amplitude) 5 μsec.: 5 Vp-p 10 μsec.: 3.5 Vp-p 50 μsec.: 2 Vp-p 100 μsec.: 1 Vp-p 500 μsec.: 0.5 Vp-p Input impedance: 100 kΩ minimum 25mV – 50V 25mV – 50V 25mV p-p – 50V p-p 0V *Voltage pulse examples OUTPUT SPECIFICATIONS ■ Open Collector: 50 V DC @ 50 mA (resistive load) Frequency range: 0 – 20 kHz ON pulse width: Approx. 30 μsec. Saturation voltage: 0.6 V DC ■ Relay Contact: 120 V AC @ 200 mA (cos ø = 1)

240 V AC @ 100 mA (cos ø = 1)

24 V DC @ 200 mA (resistive load)

Maximum switching voltage: 240 V AC or 30 V DC Maximum switching power: 24 VA or 4.8 W Minimum load: 5 V DC @ 10 mA Frequency range: 0 – 2 Hz ON pulse width: Approx. 30 msec. Relay life: ≥ 5 × 107 cycles (mechanical) ≥ 105 cycles (electrical) ■ 5 V Pulse Frequency range: 0 – 20 kHz Low pulse width: Approx. 30 μsec. High level: 5 V ±10 % Low level: ≤ 0.5 V Load resistance: 600 Ω minimum ■ 24 V Pulse Frequency range: 0 – 20 Hz High pulse width: Approx. 30 msec. High level: 24 V ±10 % Low level: ≤ 0.5 V Load current: 30 mA max. Load resistance: 800 Ω minimum INSTALLATION Current consumption: Approx. 80 mA Operating temperature: -5 to +55°C (23 to 131°F) Operating humidity: 30 to 90 %RH (non-condensing) Mounting: Standard Rack 18KBXx Weight: 150 g (0.33 lb) PERFORMANCE Insulation resistance: ≥ 100 MΩ with 500 V DC Dielectric strength: 500 V AC @ 1 minute (input to output to power to ground )

MODEL: 18KPR 18KPR SPECIFICATIONS ES-0460 Rev.1 Page 3/4 http://www.m-system.co.jp/ EXTERNAL VIEW Sensitivity Adj. 7 8 5 6 3 4 Power Switch ON OFF Sensitivity Adj. 7 8 5 6 3 4 ■ SIDE VIEW

  • With Power Switch
  • Without Power Switch ■ FRONT VIEW Connector Scaling Factor Adj. Rotary Switches (A) 10-1 (B) 10-2 (C) 10-3 (D) 10-4 (E) 10-n Refer to the instruction manual for detailed procedures. EXTERNAL DIMENSIONS unit: mm (inch) 110 (4.33 ) 93 (3.66) 24 (.94) 7 (.28) 78 (3.07)32 (1.26) 8–M3.5 SCREW 7 (.28) 2–M3 SCREW

MODEL: 18KPR 18KPR SPECIFICATIONS ES-0460 Rev.1 Page 4/4 http://www.m-system.co.jp/ TERMINAL ASSIGNMENTS 1 2 3 4 7 8 5 6 SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM Pulse Volt. Amplifier 51 SENSITIVITY ADJ. Scaler One-Shot +7.5 V SCALING FACTOR ADJ. * Only with dry contact input ** With power switch only Use either of module or external field terminals. Output Driver OUTPUT OUTPUT POWER INPUT CONNECTOR Section A. Field Terminals Isolation Module Field Terminals (Section A) External Field Terminals (Section A) Specifications are subject to change without notice.